(PHP 4 >= 4.2.0, PHP 5, PHP 7)
md5_file — Calculates the md5 hash of a given file
$filename
[, bool $raw_output = FALSE
] ) : string
Calculates the MD5 hash of the file specified by the
filename parameter using the
» RSA Data Security, Inc.
MD5 Message-Digest Algorithm, and returns that hash.
The hash is a 32-character hexadecimal number.
filenameThe filename
raw_output
When TRUE, returns the digest in raw binary format with a length of
16.
Returns a string on success, FALSE otherwise.
| Version | Description |
|---|---|
| 5.1.0 | Changed the function to use the streams API. It means that you can use it with wrappers, like md5_file('http://example.com/..') |
Example #1 Usage example of md5_file()
<?php
$file = 'php-5.3.0alpha2-Win32-VC9-x64.zip';
echo 'MD5 file hash of ' . $file . ': ' . md5_file($file);
?>